Answer:
r=28.27 cm aprox
Step-by-step explanation:
Well you know that the area of a circle is A= 
so
2511= so
=2511/
r=28.27 cm aprox
Answer:
Use desmos graphing calculator plug in your equations and see which one has all points.You can use desmos for a bunch of stuff too
Step-by-step explanation:its C though
.
Step-by-step explanation:
a || b,
m+125=180° ( straight angle)
m= 180-125° =55°
Answer:
y=3x+10
Step-by-step explanation:
First, put the equation into point-slope form.
y-y1=m(x-x1)
y-4=3(x+2)
Next, distribute 3 to (x+2) and simplify.
y-4=3x+6
y=3x+10
Right triangles must follow the pythagorean theorem, so a^2+b^2=c^2.
Let's find a^2 and b^2 by squaring the first 2 side lengths.
(x^2-1)^2= x^4-2x^2+1
(2x)^2= 4x^2
Then add the two to find c^2
x^4+ 2x^2 +1= c^2
Root both sides
x^2+1=c
Since the side lengths can be plugged into the pythagorean theorem, the side lengths must represent a right triangle.
Hope this helps!
